diff --git a/CHANGELOG.md b/CHANGELOG.md
index f57fcba4e..08411ea05 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,8 @@
 
 ## Unreleased
 
+### [4.2.1] 2023-01-04
+
 ### Fixed
 
 - Export of the peakina Connector through `CONNECTOR_REGISTRY`.
diff --git a/pyproject.toml b/pyproject.toml
index 2c0bcdb4b..6edee3cbb 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -11,7 +11,7 @@ multi_line_output = 3
 
 [tool.poetry]
 name = "toucan-connectors"
-version = "4.2.0"
+version = "4.2.1"
 description = "Toucan Toco Connectors"
 authors = ["Toucan Toco <dev@toucantoco.com>"]
 license = "BSD"
diff --git a/sonar-project.properties b/sonar-project.properties
index 39cceb1c8..b900e2c23 100644
--- a/sonar-project.properties
+++ b/sonar-project.properties
@@ -3,7 +3,7 @@ sonar.organization=toucantoco
 
 # This is the name and version displayed in the SonarCloud UI.
 sonar.projectName=Toucan Connectors
-sonar.projectVersion=4.2.0
+sonar.projectVersion=4.2.1
 sonar.python.version=3.10
 
 # Path is relative to the sonar-project.properties file. Replace "\" by "/" on Windows.